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Rhubarb or Pie-plant Pie

From an old cookbook · modernised transcription
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Why it works: Rhubarb and flour match in chemistry and in kitchens. They rank in the top 7% of all ingredient pairs, and cooks put them together in 670 recipes. Both carry isobutyraldehyde, which smells malty, green. The science ↓

Rhubarb or Pie-plant Pie

Ingredients

Directions

  1. Wash the rhubarb, remove the skin, and slice it thinly.

  2. Peel, core, and slice the apples.

  3. Line a pie plate with crust and fill it with the rhubarb and apple.

  4. Sprinkle ¾ cup of sugar, a few bits of butter, and 1 tablespoon of flour over the filling.

  5. Cover with an upper crust, wet the edges of the bottom crust, and cut small slits in the top crust.

  6. Press the top crust gently to the edges of the bottom crust and trim any overhanging portions.

  7. Ensure the edges are well sealed to prevent juice from escaping.

Recipe from a historical cookbook (Internet Archive).

Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.

Explore the science

The flavor team

The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.

  1. Rhubarb + flourtop 7% of all pairs
    Smell alikestrong
    Cooked together670 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  2. Rhubarb + appletop 9% of all pairs
    Smell alikemoderate
    Cooked together162 recipes

    Shared aroma: methyl cinnamate (strawberry).

  3. Flour + buttertop 12% of all pairs
    Smell alikelow
    Cooked together124,287 recipes

    Shared aroma: isobutyraldehyde (malty, green).

  4. Apple + buttertop 14% of all pairs
    Smell alikemoderate
    Cooked together8,706 recipes

    Shared aroma: trans-2-nonenal (cardboard, fatty).

  5. Sugar + flourtop 15% of all pairs
    Smell alikemoderate
    Cooked together92,116 recipes

    Shared aroma: phenylacetaldehyde (hawthorne, honey).

Flour and butter barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.

Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs

Swap the apple

How well each one fits the dish's main ingredients (rhubarb, sugar, flour, butter):

  1. Vanillafits better
  2. Raisinfits better
  3. Figfits better
  4. Applethe original

Fit is the average pairing score against rhubarb, sugar, flour, butter. Candidates are from the same food group and used in at least 100 recipes.

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